Alphabetic Index FY2027

N14

Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions

FY2027Chapter 14: Diseases of the genitourinary system/N10–N16 Renal tubulo-interstitial diseases

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

N14 is a non-billable ICD-10-CM code category for drug- and heavy-metal-induced tubulo-interstitial and tubular conditions. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are N14.0 Analgesic nephropathy; N14.1 Nephropathy induced by other drugs, medicaments and biological substances; N14.2 Nephropathy induced by unspecified drug, medicament or biological substance; N14.3 Nephropathy induced by heavy metals and 1 more. Its coding notes include a Code first instruction, a Use additional code instruction, 1 Excludes1 entry and 8 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code
  • poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code

Add the listed code as a secondary code, if known.

This code
  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (1 note)
Inherited from N10–N16 Renal tubulo-interstitial diseases
  • pyeloureteritis cystica (N28.85)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 14 Diseases of the genitourinary system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (1 note)
Inherited from N10–N16 Renal tubulo-interstitial diseases
  • pyelonephritis

More specific codes under N14 5